warn if directly added files are not images or are not optimizable
warn if directly added files are not images or are not optimizable
weheartit/image_optim,mihailim/image_optim,mihailim/image_optim,weheartit/image_optim,ramiroaraujo/image_optim,ramiroaraujo/image_optim,toy/image_optim,toy/image_optim,printbear/image_optim,ramiroaraujo/image_optim,toy/image_optim,weheartit/image_optim,mihailim/image_optim,printbear/image_optim